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In the example below, the C2000H PC would be a transfer PC and could be used
to transfer data between the two Subsystems, e.g., to write to LR word12 by the
C200H PC in operating level 0 to LR word 32, one of its write words in operating
level 1. Any PC in level 1 could then access this data directly from LR word 32 in
its own LR area.
PC Link Unit 1
PC Link Unit 1
PC Link Unit 0
PC Link Unit 3
C2000H CPU Rack
C500 CPU Rack C500 CPU Rack
C200H CPU Rack
C200H CPU Rack
C1000H
CPU
Rack
Operating
level 0
Operating
level 1
PC Link Unit 2
PC Link Unit 2
PC Link Unit 0
LR 04 to LR 07
C2000H CPU
Unit 0, level 0
C500 CPU
Unit 1, level 0
C500 CPU
Unit 2, level 0
C200H CPU
Unit 3, level 0
Unit 0, level 1
C1000H CPU
Unit 1, level 1
C200H CPU
Unit 2, level 1
LR 00 to LR 03 LR 00 to LR 03 LR 00 to LR 03 LR 00 to LR 03
LR 04 to LR 07 LR 04 to LR 07 LR 04 to LR 07
LR 08 to LR 11 LR 08 to LR 11 LR 08 to LR 11 LR 08 to LR 11
LR 12 to LR 15 LR 12 to LR 15 LR 12 to LR 15 LR 12 to LR 15
LR 16 to LR 31 LR 16 to LR 31 LR 16 to LR 31
LR 32 to LR 63
LR 32 to LR 39
LR 32 to LR 39 LR 32 to LR 39
LR 40 to LR 47 LR 40 to LR 47 LR 40 to LR 47
LR 48 to LR 55
LR 00 to LR 31 LR 00 to LR 31
LR 48 to LR 55 LR 48 to LR 55
LR 56 to LR 63 LR 56 to LR 63 LR 56 to LR 63
Useable
as work
bits.
Useable
as work
bits.
(level 1)
Useable
as work
bits.
(level 1)
Useable
as work
bits.
(level 0)
Useable
as work
bits.
LR 16 to LR 31
Useable
as work
bits.
(continued below)
Useable
as work
bits.
The C200H could be replaced by the C200HS and C200HX/HG/HE(-Z) with-
out any changes in this example.
Note
LR Area Allocations Section 3-2